Patents by Inventor Esa Hautakorpi

Esa Hautakorpi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • DC inductor
    Patent number: 7889040
    Abstract: A DC inductor comprising a core structure (11) comprising one or more magnetic gaps (12, 13), a coil (14) wound on the core structure (11), at least one permanent magnet (15) positioned in the core structure, the magnetization of the permanent magnet (15) opposing the magnetization producible by the coil (14). The DC inductor further comprises at least one magnetic slab (16) inserted to the core structure which forms the one or more magnetic gaps (12, 13), at least one supporting member (17) made of magnetic material extending from the core structure inside the core structure and supporting the at least one permanent magnet (15), and that the at least one supporting member (17) is arranged to form a magnetic path for the at least one permanent magnet.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: February 15, 2011
    Assignee: ABB Oy
    Inventors: Tero Viitanen, Paulius Pieteris, Esa Hautakorpi
  • DC Inductor
    Publication number: 20080303620
    Abstract: A DC inductor comprising a core structure (11) comprising one or more magnetic gaps (12, 13), a coil (14) wound on the core structure (11), at least one permanent magnet (15) positioned in the core structure, the magnetization of the permanent magnet (15) opposing the magnetization producible by the coil (14). The DC inductor further comprises at least one magnetic slab (16) inserted to the core structure which forms the one or more magnetic gaps (12, 13), at least one supporting member (17) made of magnetic material extending from the core structure inside the core structure and supporting the at least one permanent magnet (15), and that the at least one supporting member (17) is arranged to form a magnetic path for the at least one permanent magnet.
    Type: Application
    Filed: June 6, 2008
    Publication date: December 11, 2008
    Applicant: ABB OY
    Inventors: Tero Viitanen, Paulius Pieteris, Esa Hautakorpi
  • Casing for an electronic unit
    Patent number: D510319
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: October 4, 2005
    Assignee: ABB Oy
    Inventors: Juha Tuomola, Esa Hautakorpi
  • Casing for an electronic unit
    Patent number: D510320
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: October 4, 2005
    Assignee: ABB Oy
    Inventors: Juha Tuomola, Esa Hautakorpi
  • Casing for an electronic unit
    Patent number: D511137
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: November 1, 2005
    Assignee: ABB Oy
    Inventors: Juha Tuomola, Esa Hautakorpi